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Application of a new lattice-fluid equation of state based on chemical-association theory for polymer systems / Xiaochun Xu in Industrial & engineering chemistry research, Vol. 48 N° 16 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7828–7837 Titre : Application of a new lattice-fluid equation of state based on chemical-association theory for polymer systems Type de document : texte imprimé Auteurs : Xiaochun Xu, Auteur ; Changjun Peng, Auteur ; Guiping Cao, Auteur Année de publication : 2009 Article en page(s) : pp. 7828–7837 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Lattice-fluid  equation  of  state  Fluid  systems  Ionic  liquid  systems Résumé : In our previous work, a new lattice-fluid equation of state (LF-EoS) was developed and successfully applied to normal fluid systems and ionic liquid systems. In this work, this LF-EoS is further extended to describe thermodynamic properties of polymer systems. First, the model parameters for polymers were determined by fitting experimental pVT data of polymers over a wide temperature and pressure range. Then, the LF-EoS was applied for calculating vapor−liquid equilibrium (VLE) of polymer−solvent systems using one adjustable binary parameter κ12. The solubility of gas in polymer can be calculated up to a high pressure. Moreover, a new parameter Cr was introduced to describe the effect of composition of mixtures on chain length parameter r, and several typical liquid−liquid equilibrium behaviors of polymer solutions can be successfully reproduced. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900676n [article] Application of a new lattice-fluid equation of state based on chemical-association theory for polymer systems [texte imprimé] / Xiaochun Xu, Auteur ; Changjun Peng, Auteur ; Guiping Cao, Auteur . - 2009 . - pp. 7828–7837. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7828–7837 Mots-clés : Lattice-fluid  equation  of  state  Fluid  systems  Ionic  liquid  systems Résumé : In our previous work, a new lattice-fluid equation of state (LF-EoS) was developed and successfully applied to normal fluid systems and ionic liquid systems. In this work, this LF-EoS is further extended to describe thermodynamic properties of polymer systems. First, the model parameters for polymers were determined by fitting experimental pVT data of polymers over a wide temperature and pressure range. Then, the LF-EoS was applied for calculating vapor−liquid equilibrium (VLE) of polymer−solvent systems using one adjustable binary parameter κ12. The solubility of gas in polymer can be calculated up to a high pressure. Moreover, a new parameter Cr was introduced to describe the effect of composition of mixtures on chain length parameter r, and several typical liquid−liquid equilibrium behaviors of polymer solutions can be successfully reproduced. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900676n